ThunderMax pinging Twin Cam 96
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Road Captain
Joined: Dec 2006
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ThunderMax pinging Twin Cam 96
I installed the thundermax and put the map on for the appropriate setup. I have SE slip-ons and a K&N filter, pretty basic setup. I get pinging when I accelerate hard and the bike is fully warmed up. Has anyone else had this and what did you do to correct this. I was told I need to remove timing in the rpm range where it is pinging. Before I do this, I wanted to better understand what this will do and why. I have also heard that you can fix this by adding more fuel or by adjusting the accelerator pump or whatever the feature is called on the TMAX.
If you have any suggestions, please provide some detail, I am a rookie at the TMAX. I did make one small adjustment to timing and it didn't fix the pinging. All I did was bring the timing down 1 notch on the overall timing section in the 2 to 4 K rpm section.
If you have any suggestions, please provide some detail, I am a rookie at the TMAX. I did make one small adjustment to timing and it didn't fix the pinging. All I did was bring the timing down 1 notch on the overall timing section in the 2 to 4 K rpm section.
Tourer
Joined: Dec 2007
Posts: 324
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From: San Antonio TX
RE: ThunderMax pinging Twin Cam 96
Agree with Rbabos reccomendation, double check the map you selected. I'd also reccomend calling Zippers, they are very good about helping folks get started with their product.
Road Captain
Joined: Jun 2006
Posts: 749
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From: Fort Worth, Texas
RE: ThunderMax pinging Twin Cam 96
Try taking 1 or 2 degrees of timing out of the rear cylinder only....that does it most of the time as long as you're working with the correct map
After that....take more out of the front cylinder in the problem range and maybe add a little fuel
Also, give it time to tune....most say 300-500 miles but I think it's more like 1000-1500 in my experience
After that....take more out of the front cylinder in the problem range and maybe add a little fuel
Also, give it time to tune....most say 300-500 miles but I think it's more like 1000-1500 in my experience
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Road Captain
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RE: ThunderMax pinging Twin Cam 96
I am using the correct map, called Zippers to verify this back in November when I installed it. I've put about 3,000 miles on it since it was installed. I did talk to zippers via email and they did not sound like they wanted to help me out on this. I retarded the timing just one position down across the rpm range using the screen that changes it across the board. I will go back into the software and see if I can change it on the rear cylinder only.
Tourer
Joined: Dec 2007
Posts: 324
Likes: 1
From: San Antonio TX
RE: ThunderMax pinging Twin Cam 96
VTwin,
What has changed recently? Are you using the same type of gas from the same location? Was the bike running good and then the pinging started? When did it start? What changed just before it started?
Rick
What has changed recently? Are you using the same type of gas from the same location? Was the bike running good and then the pinging started? When did it start? What changed just before it started?
Rick
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Road Captain
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RE: ThunderMax pinging Twin Cam 96
It has been pinging since the beginning. I just try not to get on it to much to cause it to ping and I don't ride the bike that much, just on the weekends. I always use Shell 93 octane fuel.
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Tourer
Joined: Dec 2007
Posts: 324
Likes: 1
From: San Antonio TX
RE: ThunderMax pinging Twin Cam 96
Here are some interesting excerpts from page 105 of the TMax manual. They don't speak directly to a problem you have had from the beginning but they do give you some things to think about. Pretty basic stuff:
Do you have the best map for your configuration? You can check that by ensuring you have the latest software update and reviewing all possible choices.
Have you checked for exhaust leaks? Are your plugs good?
Already asked about gas, but what about altitude? Where are you riding?
Finally, I'd call Zippers vs email, I've never had a problem with support via telephone (I've called them 3X and recieved patient support each time. Look at page 102, there is a caution about independent adjustment of the rear cylinder timing without dyno data.
Rick
PS: Look at pages 102-104 as well.
Do you have the best map for your configuration? You can check that by ensuring you have the latest software update and reviewing all possible choices.
Have you checked for exhaust leaks? Are your plugs good?
Already asked about gas, but what about altitude? Where are you riding?
Finally, I'd call Zippers vs email, I've never had a problem with support via telephone (I've called them 3X and recieved patient support each time. Look at page 102, there is a caution about independent adjustment of the rear cylinder timing without dyno data.
Rick
PS: Look at pages 102-104 as well.
Timing Troubleshooting:
Here are a few common scenarios that have been seen several times by Product Support. The first thing you need to do before you adjust the base map is to verify you have selected the correct map. Selecting a map with incorrect parameters is usually the source for spark knock problems. Take the time to verify the best possible base map has been selected for your application.
1.) If you have not experienced any spark knock or detonation problems, but pinging develops after your last fuel stop, do you need to adjust your timing? As long as spark knock has not been experienced before, continue operation of the motorcycle, and purchase fuel from a different source before making any
changes to your map. It is common for gasoline to be blended differently in different regions of the country. Touring riders will experience this much more so than riders that stay in one region of the country.
2.)
If the gasoline has not made a difference in the operation of the motorcycle, check that your intake & exhaust seals are not leaking, your AutoTune module is turned on, as well as reading the spark plugs. If excessive oil is found on the plugs, you may have a head gasket leak. A head gasket leak can cause detonation by depleting the octane rating of the fuel, allowing a build up of gasoline in the combustion chamber, and igniting the rich mixture when the temperature reaches a high enough level to pre-ignite.
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Road Captain
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RE: ThunderMax pinging Twin Cam 96
Thanks for the information, that is all good stuff. I am riding at sea level, in Jacksonville FL. I have checked the plugs and they looked fine to me, no sign of oil and they are tan colored, which is what I was told is good. I hope I wouldn't have an exhaust leak, these are the stock head pipes, but I will check to make sure they are tight, is there a good way to check to make sure there is no exhaust leakage?
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Road Captain
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RE: ThunderMax pinging Twin Cam 96
By the way, the map that I am using is ItemId 392 or map name HDTSSTVDUG050107.slk, that is the base map that I started with. It was recommended by Zippers and is for the following.
Twin Cam 96 ci, Stock throttle body, Stock Cylinders, Stock Pistons, Stock Cam, Stock HD FL Head Pipe, Hi-Flow filter 2.75" deep (I have the K&N system), KW HP+ Mufflers ( I have SE slip-ons) witha date of 05/01/2007, which was the latest date at the time of installation.
I called them because they did not list a SE slip-on muffler, which I thought was strange, apparently they don't list that one but they said the Krome Werks muffler was equivalent to that muffler.
So, I feel that I can't really find a better map than this one. I also find it strange that no one else has had pinging under heavy throttle, am I the only one that gets on this thing? It doesn't ping in normal easy use, just when I really give it hell.
Twin Cam 96 ci, Stock throttle body, Stock Cylinders, Stock Pistons, Stock Cam, Stock HD FL Head Pipe, Hi-Flow filter 2.75" deep (I have the K&N system), KW HP+ Mufflers ( I have SE slip-ons) witha date of 05/01/2007, which was the latest date at the time of installation.
I called them because they did not list a SE slip-on muffler, which I thought was strange, apparently they don't list that one but they said the Krome Werks muffler was equivalent to that muffler.
So, I feel that I can't really find a better map than this one. I also find it strange that no one else has had pinging under heavy throttle, am I the only one that gets on this thing? It doesn't ping in normal easy use, just when I really give it hell.